212210110061 has 2 divisors, whose sum is σ = 212210110062. Its totient is φ = 212210110060.

The previous prime is 212210109973. The next prime is 212210110081. The reversal of 212210110061 is 160011012212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207224337961 + 4985772100 = 455219^2 + 70610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212210110061 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212210110081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106105055030 + 106105055031.

It is an arithmetic number, because the mean of its divisors is an integer number (106105055031).

Almost surely, 2^212210110061 is an apocalyptic number.

It is an amenable number.

212210110061 is a deficient number, since it is larger than the sum of its proper divisors (1).

212210110061 is an equidigital number, since it uses as much as digits as its factorization.

212210110061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 212210110061 its reverse (160011012212), we get a palindrome (372221122273).

The spelling of 212210110061 in words is "two hundred twelve billion, two hundred ten million, one hundred ten thousand, sixty-one".